Nesting biology of Centris (Hemisiella) tarsata Smith in southern Brazil (Hymenoptera, Apidae, Centridini)
A total of 67 nests of Centris tarsata were obtained from wood trap-nests of different diameters, consisting of a linear series of brood cells built with sand mixed with oil.This species showed a preference for open habitats, since it occurred only in Swamp and Grassland areas and has never been found in the Araucaria forest.Nesting activity was bi